Method for manufacturing terminals having press-fit engaging parts

Abstract

A method for manufacturing terminals is provided which can form press-fit engaging parts that can secure a necessary holding force without being affected by a clearance between terminals. The method for manufacturing terminals includes a first step in which a plurality of terminals ( 20 ) arranged in parallel to each other at a prescribed interval laterally in a row, while connected to a carrier ( 11 ), are collectively molded by press punching a sheet metal, and a second step after the first step in which press-fit engaging parts ( 22 ), which prevent the terminals from being pulling out when the terminals are press-fitted into press-fitting holes of a connector housing, are formed by applying a crushing pressure in a vertical direction that is perpendicular to the direction of arranging the terminals, onto prescribed parts in the longitudinal direction of the terminals, and making parts at the side surfaces of the terminals to be locally and convexly bulged sidewards.

1 . A method for manufacturing terminals which have press-fit engaging parts comprising:
 a first step for collectively forming a plurality of terminals arranged in parallel to each other at an interval laterally in a row in a state connected to a carrier, by press punching a sheet metal; and   a second step for forming the press-fit engaging parts after the first step, by applying crushing pressure in a vertical direction that is perpendicular to an arranging direction of the terminals and a longitudinal direction of the terminals, onto prescribed parts in the longitudinal direction of the terminals so as to make a part of a side surface of each of the terminals to be locally and convexly bulged in at least one direction of side direction and up and down direction, wherein the press-fit engaging parts prevent the terminals from being pulling out when the terminals are press-fitted into press-fitting holes of a connector housing.   
     
     
         2 . The method for manufacturing the terminals which have the press-fit engaging parts according to  claim 1 , wherein
 two convex bulged parts are formed in a row in the longitudinal direction of the terminals as the press-fit engaging parts, and   the first bulged part is formed by applying a crushing pressure from upward and the second bulged part is formed by applying a crushing pressure from downward.   
     
     
         3 . The method for manufacturing the terminals which have the press-fit engaging parts according to  claim 1 , wherein
 the convex bulged parts as the press-fit engaging parts are formed by simultaneously applying crushing pressure on same parts from both upward and downward.